1. Txaus ntshai: tsam 1 & 2;
2. Explosive cua: chav kawm?A,?B,?C;
3. Txaus ntshai: thaj tsam 21 thiab 22;
4. Flammable plua plav huab cua;
5.Tub kub: T1 ~ T6;
6. Cov khoom no (rail hom / vaj huam sib luag hom) tsis tuaj yeem siv ib leeg, nws yuav tsum tau siv ua ke nrog lwm cov ntaub ntawv tawg-pov thawj Back of board cable type tuaj yeem ua haujlwm ib leeg.